前言

前不久在網上看見Android實現的模擬時鐘，感覺十分有意思，這里是地址：

秒表。筆者突然對其有了興趣，也想去實現以下自己的模擬時鐘。折騰了一陣子總算是弄出來了

現在將實現方式共享出來，大家一些交流。

不多說，先上效果圖：

準備工作

首先我們應該準備相關的素材：時鐘盤、時針、分針、秒針圖片.

時鐘盤：

時針：

分針：

秒針：

源碼部分

配置文件，比較簡單：

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical"

tools:context=".MainActivity"

android:background="@color/bg">

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="center"

/>

MyQAnalogClock代碼：用于構造時鐘view以及其刷新顯示：

package com.kiritor.mymodelclock;

import android.util.AttributeSet;

import com.kiritor.mymodelclock.R;

import android.content.Context;

import android.graphics.*;

import android.graphics.drawable.BitmapDrawable;

import android.os.Handler;

import android.view.View;

import java.util.Calendar;

import java.util.TimeZone;

/**

* Created by Kiritor on 13-5-30.

*/

public class MyQAnalogClock extends View {

//時鐘盤，分針、秒針、時針對象

Bitmap mBmpDial;

Bitmap mBmpHour;

Bitmap mBmpMinute;

Bitmap mBmpSecond;

BitmapDrawable bmdHour;

BitmapDrawable bmdMinute;

BitmapDrawable bmdSecond;

BitmapDrawable bmdDial;

Paint mPaint;

Handler tickHandler;

int mWidth;

int mHeigh;

int mTempWidth = bmdSecond.getIntrinsicWidth();

int mTempHeigh;

int centerX;

int centerY;

int availableWidth = 100;

int availableHeight = 100;

private String sTimeZoneString;

public MyQAnalogClock(Context context,AttributeSet attr)

{

this(context,"GMT+8：00");

}

public MyQAnalogClock(Context context, String sTime_Zone) {

super(context);

sTimeZoneString = sTime_Zone;

mBmpHour = BitmapFactory.decodeResource(getResources(),

R.drawable.shizhen);

bmdHour = new BitmapDrawable(mBmpHour);

mBmpMinute = BitmapFactory.decodeResource(getResources(),

R.drawable.fenzhen);

bmdMinute = new BitmapDrawable(mBmpMinute);

mBmpSecond = BitmapFactory.decodeResource(getResources(),

R.drawable.miaozhen);

bmdSecond = new BitmapDrawable(mBmpSecond);

mBmpDial = BitmapFactory.decodeResource(getResources(),

R.drawable.android_clock_dial);

bmdDial = new BitmapDrawable(mBmpDial);

mWidth = mBmpDial.getWidth();

mHeigh = mBmpDial.getHeight();

centerX = availableWidth / 2;

centerY = availableHeight / 2;

mPaint = new Paint();

mPaint.setColor(Color.BLUE);

run();

}

public void run() {

tickHandler = new Handler();

tickHandler.post(tickRunnable);

}

private Runnable tickRunnable = new Runnable() {

public void run() {

postInvalidate();

tickHandler.postDelayed(tickRunnable, 1000);

}

};

protected void onDraw(Canvas canvas) {

super.onDraw(canvas);

Calendar cal = Calendar.getInstance(TimeZone

.getTimeZone(sTimeZoneString));

int hour = cal.get(Calendar.HOUR);

int minute = cal.get(Calendar.MINUTE);

int second = cal.get(Calendar.SECOND);

float hourRotate = hour * 30.0f + minute / 60.0f * 30.0f;

float minuteRotate = minute * 6.0f;

float secondRotate = second * 6.0f;

boolean scaled = false;

if (availableWidth < mWidth || availableHeight < mHeigh) {

scaled = true;

float scale = Math.min((float) availableWidth / (float) mWidth,

(float) availableHeight / (float) mHeigh);

canvas.save();

canvas.scale(scale, scale, centerX, centerY);

}

bmdDial.setBounds(centerX - (mWidth / 2), centerY - (mHeigh / 2),

centerX + (mWidth / 2), centerY + (mHeigh / 2));

bmdDial.draw(canvas);

mTempWidth = bmdHour.getIntrinsicWidth();

mTempHeigh = bmdHour.getIntrinsicHeight();

canvas.save();

canvas.rotate(hourRotate, centerX, centerY);

bmdHour.setBounds(centerX - (mTempWidth / 2), centerY

- (mTempHeigh / 2), centerX + (mTempWidth / 2), centerY

+ (mTempHeigh / 2));

bmdHour.draw(canvas);

canvas.restore();

mTempWidth = bmdMinute.getIntrinsicWidth();

mTempHeigh = bmdMinute.getIntrinsicHeight();

canvas.save();

canvas.rotate(minuteRotate, centerX, centerY);

bmdMinute.setBounds(centerX - (mTempWidth / 2), centerY

- (mTempHeigh / 2), centerX + (mTempWidth / 2), centerY

+ (mTempHeigh / 2));

bmdMinute.draw(canvas);

canvas.restore();

mTempWidth = bmdSecond.getIntrinsicWidth();

mTempHeigh = bmdSecond.getIntrinsicHeight();

canvas.rotate(secondRotate, centerX, centerY);

bmdSecond.setBounds(centerX - (mTempWidth / 2), centerY

- (mTempHeigh / 2), centerX + (mTempWidth / 2), centerY

+ (mTempHeigh / 2));

bmdSecond.draw(canvas);

if (scaled) {

canvas.restore();

}

}

}

主Activity：

package com.kiritor.mymodelclock;

import android.app.Activity;

import android.os.Bundle;

/**

* Created by Kiritor on 13-5-30.

*/

public class MainActivity extends Activity {

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

}

}

好了一個簡單的模擬時鐘就完成了，不過通過觀察運行效果可以看出的是，筆者對

時針、分針、秒針圖片的設計不是太美觀，看的不是太清楚，體驗略差。不過這不是重點

讀者可以自己去設計一下那4張圖片，從而做出不同的效果!

這里本實例使用Android Studio做的，完整項目源碼就不上傳了!Over！

總結

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